Arcadia Viaduct Tee beam bridge over MO 21 and the Union Pacific Railroad at Arcadia Open to traffic Built 1930
Big Creek MO 49 Bridge Through truss bridge over Big Creek on MO 49 south of Annapolis Open to two-lane traffic Built 1924
Carver Creek Bridge Pony truss bridge over Carver Creek on MO 21/49/72 east of Lesterville Open to two-lane traffic Built 1932
Chloride Bridge Pony truss bridge over Big Creek just off MO 49 on Little Creek Road near Chloride Open to one-lane traffic Built ca. 1930
Frank Adams Road Bridge Lost pony truss bridge over Stouts Creek on Frank Adams Road west of Ironton Replaced by modern bridge Built ca. 1930
Gum Spring Old MO 21 Bridge Arch bridge over Gum Spring Creek on CR 20 (Old MO 21) Open to traffic Built 1922; made obsolete by a new alignment of MO 21
Ironton Bridge Tee beam bridge over Stouts Creek on Old MO 21 between Ironton and Arcadia Open to traffic Built 1926
Reid Creek Bridge Bridge over Reid Creek on Mo Route 21 Open to traffic Built 1925
Sabula Bridge Two-span open-spandrel arch bridge over Big Creek on MO 49 north of Sabula Open to traffic Built 1922; rehabilitated 1945
Stouts Creek Arch Bridge Open-spandrel arch bridge over Stouts Creek on MO 72 above Lake Killarney Open to traffic Built 1928
Townsend Branch Old MO 21 Bridge Arch bridge over Townsend Branch on CR 20 (Old MO 21) Open to traffic Built 1922; made obsolete by a new alignment of MO 21
Vulcan MO 49 Bridge Pony truss on MO 49 over Vulcan Creek at the intersection with Route BB at Vulcan Open to two-lane traffic Built 1924
Vulcan Railroad Bridge Concrete railroad viaduct over Route BB at Vulcan just off MO 49 Open to railroad traffic above and two-lane road traffic below Built ca. 1946 by Missouri Pacific as part of a "grade and line
revision project" to accomodate higher speed trains between St. Louis
and Texas